Tucker Sean 4

What Happened
Sean Tucker, Senior Vice President and Chief Scientific Officer of Vaxart, had 8,072 shares withheld by the company on March 18, 2026 to satisfy income tax withholding related to RSUs that vested. The withholding price reported was $0.63 per share, totaling approximately $5,122. This was a tax-withholding/net settlement of vested restricted stock, not an open-market sale or purchase.

Key Details

• Transaction date: March 18, 2026; Form 4 filed March 20, 2026.
• Transaction type/code: F — shares withheld to satisfy tax withholding on vested RSUs.
• Shares withheld/disposed: 8,072 shares at $0.63 each; total value ~$5,122.
• Footnote: F1 — issuer withheld shares to satisfy income tax withholding for net-settled RSUs vested as of March 18, 2026.
• Shares owned after transaction: Not specified in the provided filing.
• Timeliness: Filing was submitted two days after the transaction date, which is generally within the Form 4 reporting window.

Context
Net settlement tax-withholdings are a routine administrative event when RSUs vest: the company retains (withholds) some of the vested shares to cover required taxes rather than the insider selling shares on the open market. Such withholdings are not generally interpreted as a bullish or bearish signal about the insider’s view of the company.